1. Department of Research and Development Netherlands Comprehensive Cancer Organisation (IKNL) Utrecht The Netherlands
2. Department of Registration Netherlands Comprehensive Cancer Organisation (IKNL) Utrecht The Netherlands
3. Department of Hematology Cancer Center Amsterdam LYMMCARE (Lymphoma and Myeloma Center Amsterdam) Amsterdam UMC University of Amsterdam Amsterdam The Netherlands
4. Department of Internal Medical Division of Hematology Maastricht University Medical Center Maastricht The Netherlands
5. Department of Hematology Radboud University Medical Center Nijmegen The Netherlands
6. Department of Hematology Erasmus MC Cancer Institute Rotterdam The Netherlands
7. Amsterdam UMC Vrije Universiteit Amsterdam Department of Hematology Cancer Center Amsterdam Amsterdam The Netherlands
8. Department of Public Health Erasmus University Medical Center Rotterdam The Netherlands